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细节
cover 1914 (14 Mar.) a red band cover sent from the Post Office at Chabdo to the Post Office in Chentu bearing 3a. on 16c. olive-green and 4a. on 20c. maroon tied by the large, double-ring "CHABDO - TIBET" c.d.s. Superb condition and a very rare inter post office cover - only two are thought to exist from Chabdo. Photo